package com.ruoyi.web.controller.system;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Date;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.lang.Dict;
import cn.hutool.core.util.RandomUtil;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.entity.SysDept;
import com.ruoyi.common.websocket.SocketMessageVo;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.system.domain.vo.SysUserBatchAddVo;
import com.ruoyi.common.utils.appsdks.WechatUtils;
import com.ruoyi.common.core.domain.entity.SysUserWechat;
import com.ruoyi.system.service.*;
import com.ruoyi.common.websocket.MessageEndpoint;
import org.apache.commons.lang3.ArrayUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.util.ResourceUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.annotation.Log;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.controller.BaseController;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.core.domain.entity.SysRole;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.page.TableDataInfo;
import com.ruoyi.common.enums.BusinessType;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.poi.ExcelUtil;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;

/**
 * 用户信息
 *
 * @author ruoyi
 */
@RestController
@RequestMapping("/system/user")
public class SysUserController extends BaseController {
    @Autowired
    private ISysUserService userService;

    @Autowired
    private ISysRoleService roleService;
    
    @Autowired
    private ISysDeptService deptService;

    @Autowired
    private ISysPostService postService;
    @Autowired
    private ISysUserWechatService userWechatService;
    @Autowired
    private MessageEndpoint messageEndpoint;
    @Autowired
    private RedisCache redisCache;

    /**
     * 获取用户列表
     */
    @PreAuthorize("@ss.hasPermi('system:user:list')")
    @GetMapping("/list")
    public TableDataInfo list(SysUser user) {
        startPage();
        List<SysUser> list = userService.selectUserList(user);
        return getDataTable(list);
    }

    /**
     * 根据手机号查询用户列表
     */
    @GetMapping("/listUsersByPhone")
    public AjaxResult listUsersByPhone(String phone) {
        List<SysUser> users = userService.selectUsersByUserPhone(phone);
        return AjaxResult.success(users);
    }

    @Log(title = "用户管理", businessType = BusinessType.EXPORT)
    @PreAuthorize("@ss.hasPermi('system:user:export')")
    @GetMapping("/export")
    public AjaxResult export(SysUser user) {
        List<SysUser> list = userService.selectUserList(user);
        ExcelUtil<SysUser> util = new ExcelUtil<SysUser>(SysUser.class);
        return util.exportExcel(list, "用户数据");
    }

    @Log(title = "用户管理", businessType = BusinessType.IMPORT)
    @PreAuthorize("@ss.hasPermi('system:user:import')")
    @PostMapping("/importData")
    public AjaxResult importData(MultipartFile file, boolean updateSupport) throws Exception {
        ExcelUtil<SysUser> util = new ExcelUtil<SysUser>(SysUser.class);
        List<SysUser> userList = util.importExcel(file.getInputStream());
        String operName = getUsername();
        String message = userService.importUser(userList, updateSupport, operName);
        return AjaxResult.success(message);
    }

    @GetMapping("/importTemplate")
    public AjaxResult importTemplate() {
        ExcelUtil<SysUser> util = new ExcelUtil<SysUser>(SysUser.class);
        return util.importTemplateExcel("用户数据");
    }

    /**
     * 根据用户编号获取详细信息
     */
    @PreAuthorize("@ss.hasPermi('system:user:query')")
    @GetMapping(value = {"/", "/{userId}"})
    public AjaxResult getInfo(@PathVariable(value = "userId", required = false) Long userId) {
        AjaxResult ajax = AjaxResult.success();
        if (StringUtils.isNotNull(userId)) {
            userService.checkUserDataScope(userId);
            SysUser sysUser = userService.selectUserById(userId);
            ajax.put(AjaxResult.DATA_TAG, sysUser);
            ajax.put("postIds", postService.selectPostListByUserId(userId));
            ajax.put("roleIds", sysUser.getRoles().stream().map(SysRole::getRoleId).collect(Collectors.toList()));
        }
        List<SysRole> roles = roleService.selectRoleAll();
        ajax.put("roles", SysUser.isAdmin(userId) ? roles : roles.stream().filter(r -> !r.isAdmin()).collect(Collectors.toList()));
        ajax.put("posts", postService.selectPostAll());
        return ajax;
    }

    /**
     * 新增用户
     */
    @PreAuthorize("@ss.hasPermi('system:user:add')")
    @Log(title = "用户管理", businessType = BusinessType.INSERT)
    @PostMapping
    public AjaxResult add(@Validated @RequestBody SysUser user) {
        if (!userService.checkUserNameUnique(user)){
            return AjaxResult.error("新增用户'" + user.getUserName() + "'失败，登录账号已存在");
        } else if (StringUtils.isNotEmpty(user.getPhonenumber()) && !userService.checkPhoneUnique(user)) {
            return AjaxResult.error("新增用户'" + user.getUserName() + "'失败，手机号码已存在");
        } else if (StringUtils.isNotEmpty(user.getEmail()) && !userService.checkEmailUnique(user)) {
            return AjaxResult.error("新增用户'" + user.getUserName() + "'失败，邮箱账号已存在");
        }
        user.setCreateBy(getUsername());
        user.setPassword(SecurityUtils.encryptPassword(user.getPassword()));
        return toAjax(userService.insertUser(user));
    }

    /**
     * 批量新增
     */
    @PreAuthorize("@ss.hasPermi('system:user:add')")
    @Log(title = "用户管理", businessType = BusinessType.INSERT)
    @PostMapping("/batchAdd")
    public AjaxResult batchAdd(@RequestBody SysUserBatchAddVo batchAddVo) {
        return AjaxResult.success(userService.batchAdd(batchAddVo));
    }

    /**
     * 批量删除
     */
    @PreAuthorize("@ss.hasPermi('system:user:remove')")
    @Log(title = "用户管理", businessType = BusinessType.DELETE)
    @PostMapping("/batchRemove")
    public AjaxResult batchRemove(@RequestBody SysUserBatchAddVo batchAddVo) {
        return AjaxResult.success(userService.batchRemove(batchAddVo));
    }

    /**
     * 修改用户
     */
    @PreAuthorize("@ss.hasPermi('system:user:edit')")
    @Log(title = "用户管理", businessType = BusinessType.UPDATE)
    @PutMapping
    public AjaxResult edit(@Validated @RequestBody SysUser user) {
        userService.checkUserAllowed(user);
        userService.checkUserDataScope(user.getUserId());
        if (!userService.checkUserNameUnique(user))
        {
            return AjaxResult.error("修改用户'" + user.getUserName() + "'失败，登录账号已存在");
        }
        else if (StringUtils.isNotEmpty(user.getPhonenumber()) && !userService.checkPhoneUnique(user)) {
            return AjaxResult.error("修改用户'" + user.getUserName() + "'失败，手机号码已存在");
        } else if (StringUtils.isNotEmpty(user.getEmail()) && !userService.checkEmailUnique(user)) {
            return AjaxResult.error("修改用户'" + user.getUserName() + "'失败，邮箱账号已存在");
        }
        user.setUpdateBy(getUsername());
        return toAjax(userService.updateUser(user));
    }

    /**
     * 删除用户
     */
    @PreAuthorize("@ss.hasPermi('system:user:remove')")
    @Log(title = "用户管理", businessType = BusinessType.DELETE)
    @DeleteMapping("/{userIds}")
    public AjaxResult remove(@PathVariable Long[] userIds) {
        if (ArrayUtils.contains(userIds, getUserId())) {
            return error("当前用户不能删除");
        }
        return toAjax(userService.deleteUserByIds(userIds));
    }

    /**
     * 重置密码
     */
    @PreAuthorize("@ss.hasPermi('system:user:resetPwd')")
    @Log(title = "用户管理", businessType = BusinessType.UPDATE)
    @PutMapping("/resetPwd")
    public AjaxResult resetPwd(@RequestBody SysUser user) {
        userService.checkUserAllowed(user);
        userService.checkUserDataScope(user.getUserId());
        user.setPassword(SecurityUtils.encryptPassword(user.getPassword()));
        user.setUpdateBy(getUsername());
        return toAjax(userService.resetPwd(user));
    }

    /**
     * 状态修改
     */
    @PreAuthorize("@ss.hasPermi('system:user:edit')")
    @Log(title = "用户管理", businessType = BusinessType.UPDATE)
    @PutMapping("/changeStatus")
    public AjaxResult changeStatus(@RequestBody SysUser user) {
        userService.checkUserAllowed(user);
        userService.checkUserDataScope(user.getUserId());
        user.setUpdateBy(getUsername());
        return toAjax(userService.updateUserStatus(user));
    }

    /**
     * 根据用户编号获取授权角色
     */
    @PreAuthorize("@ss.hasPermi('system:user:query')")
    @GetMapping("/authRole/{userId}")
    public AjaxResult authRole(@PathVariable("userId") Long userId) {
        AjaxResult ajax = AjaxResult.success();
        SysUser user = userService.selectUserById(userId);
        List<SysRole> roles = roleService.selectRolesByUserId(userId);
        ajax.put("user", user);
        ajax.put("roles", SysUser.isAdmin(userId) ? roles : roles.stream().filter(r -> !r.isAdmin()).collect(Collectors.toList()));
        return ajax;
    }

    /**
     * 用户授权角色
     */
    @PreAuthorize("@ss.hasPermi('system:user:edit')")
    @Log(title = "用户管理", businessType = BusinessType.GRANT)
    @PutMapping("/authRole")
    public AjaxResult insertAuthRole(Long userId, Long[] roleIds) {
        userService.checkUserDataScope(userId);
        userService.insertUserAuth(userId, roleIds);
        return success();
    }

    /**
     * 获取部门树列表
     */
    @PreAuthorize("@ss.hasPermi('system:user:list')")
    @GetMapping("/deptTree")
    public AjaxResult deptTree(SysDept dept)
    {
        return AjaxResult.success(deptService.selectDeptTreeList(dept));
    }

    /**
     * 获取绑定的微信信息
     */
    @RequestMapping("/getBindWechatInfo")
    public AjaxResult getBindWechatInfo() {
        String username = SecurityUtils.getLoginUser().getUsername();
        SysUserWechat wechat = userWechatService.getOneByUserName(username);
        return AjaxResult.success(wechat);
    }

    /**
     * 解绑
     */
    @DeleteMapping("/unbindWechat/{id}")
    public AjaxResult unbindWechat(@PathVariable Long id) {
        return toAjax(userWechatService.removeById(id));
    }

    /**
     * 获取绑定二维码
     */
    @RequestMapping("/loginCode/{userName}")
    public void loginCode(@PathVariable String userName, HttpServletResponse response) throws IOException {
        //获取二维码
        BufferedImage image = WechatUtils.loginQrCode(userName);
        //写出到输出流
        response.setContentType("image/jpeg");
        // 不缓存此内容
        response.setHeader("Pragma", "No-cache");
        response.setHeader("Cache-Control", "no-cache");
        response.setDateHeader("Expire", 0);
        ImageIO.write(image, "JPEG", response.getOutputStream());
    }

    /**
     * 绑定后的回调链接
     */
    @RequestMapping("/redirect")
    public String redirect(String code, String state) throws FileNotFoundException {
        //返回文件内容
        boolean isLogin = state.startsWith("login_");
        String fileName = isLogin ? "wechatLoginSuccess.html" : "wechatBindSuccess.html";


        //拿code换取accessToken
        SysUserWechat userInfo = WechatUtils.getUserInfoByCode(code);
        // 查询已绑定用户并返回选择用户界面
        if (isLogin) {
            //根据openid查询用户列表
            String scanCode = RandomUtil.randomString(16);
            List<SysUser> users = userWechatService.listSysUsersByOpenid(userInfo.getOpenid());
            SocketMessageVo<Dict> msgVo = new SocketMessageVo<>(
                    SocketMessageVo.EventType.LOGIN_SUCCESS,
                    Dict.create().set("userInfo", userInfo).set("users", users).set("code", scanCode)
            );
            messageEndpoint.sendMessageToUsers(msgVo, state);
            //设置缓存
            if (StringUtils.isNotEmpty(userInfo.getOpenid())) {
                String key = CacheConstants.CAPTCHA_WECHAT_SCAN_CODE_KEY + userInfo.getOpenid();
                redisCache.setCacheObject(key, scanCode, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
            }
        } else {
            // 绑定用户回调
            userInfo.setUserName(state);
            //state为用户名
            SysUserWechat nowUser = userWechatService.getOneByUserName(state);
            if (nowUser != null) {
                userInfo.setUpdateTime(new Date()).setId(nowUser.getId());
                userWechatService.updateById(userInfo);
            } else {
                userInfo.setCreateTime(new Date());
                userWechatService.save(userInfo);
            }
            //socket返回绑定成功消息
            SocketMessageVo<String> msgVo = new SocketMessageVo<>(SocketMessageVo.EventType.BIND_SUCCESS, "success");
            messageEndpoint.sendMessageToUsers(msgVo, state);
        }

        //返回页面
        File filePath = new File(ResourceUtils.getURL("classpath:static/" + fileName).getPath());
        return FileUtil.readUtf8String(filePath);
    }

    /**
     * 验证码发送测试
     */
    @RequestMapping("/sendVerificationCode")
    public AjaxResult sendVerificationCode(String openid) {
        return WechatUtils.sendVerificationCode(openid, RandomUtil.randomNumbers(6));
    }

    /**
     * 根据手机号查询绑定微信列表
     */
    @RequestMapping("/listWechatUsersByPhone")
    public AjaxResult listWechatUsersByPhone(String phone) {
        return AjaxResult.success(userWechatService.listWechatUsersByPhone(phone));
    }
}
